Unable to update PlayFab Unity SDK

Hi, this seems like a very trivial issue, however it is impacting certain areas of our project.

We seem to be unable to update the Unity SDK. There is a thread from 2017 that seems to be the exact issue we are experiencing (Clicking "Upgrade" in the Editor Extension fails at copying the SharedSettings asset, and while it appears the update finishes, the version number does not change). The image in that thread shows the exact error we are receiving.

Furthermore, attempts to install it manually produce the same unexpected result, either by updating the Editor Extension from the downloads site or removing the SDK folder and related assets entirely, restarting the editor, and importing it again from the download site.

It appears to be stuck on SDK 2.66.190509, and we are trying to update it to SDK 2.67.190520.

Also, one of the attempts at updating the SDK produced a horrible bug: After clicking "Upgrade to..." in the PlayFab editor extension, the editor crashed. Upon attempting to re-open Unity, the entire Assets directory of our project was gone and the project failed to open. Luckily we use version control and had a backup from a few minutes prior. I'm not sure if this is due to the way Unity handles editor file IO or the way the PF extensions do, but either way it might be worth looking into.

Any advice in remedying this issue is appreciated!